Chip-confining frame.



A. J. BAKER & R. T. HAZELTON CHIP GONFINING FRAME.

APPLICATION FILED MAR.4,1|14.'

Patented May 12 1914:.

WITNESSES.- 73 MB,

mmm

ATTORNEY VEW TORS ltonnn'r llAZEL'lON, a citizen of the United 'States. both residing at Cincinnati, in the thereof than has heretofore been issued.

will be in part I'Glldfil'ttll obvious in connecglosed so fully as to enable others skilled lT- D STATES: W O C ARTHUR JaIBAKERAND'ROIBERT T. HAZELTONiQOF CINCINNATI, OHIO, ASSIGNORS TO THE CINCINNATI MILLING MACHINE COME'ANYQOF OAKLEY, OHIO, A CORPORA- EION OF OHIO.

:1 names.

CHIP-CONFINING FRAME.

.:ll't'tllull May 1a, .1911.

Application flleii March 4, 1914. Serial No. 822,284.

To alt wit om, may concern lie-1t knownthahwe, ARTHUR J. liannu, subject of the King of Great Britain, and

county of Hamilton and State of Ohio, have invented a new and Improved Chip-Omaha ing Frame, of which the following specification is a full disclosure.

This invention relates to machine tools, and it proposes an improvement therein whereby its tooling capacity will be greatly enhanced by providing an organization hav ing superior facilities for accommodating a much greater flow of the tool cooling .medium than has heretofore been usual, and whereby the work parts of the mechanism may be kept free from chips and cuttings, imtwvithstanding a much greater production 'One object: within the contemplation of this invention is to devise a "cry simple in strumentality which may be used in conjunction with the table of a conventional milling machine or otherunachine tool, and which will not only prevent an undue s attering of the chips from the tool, but which will also serve as a splash guard in confining the cooling neclium and properly directing its flow through appropriate channels provided by the table.

Another object is to provide an arrangement of the nature revealed, which will be essentially handy in that it; may be easily applied andrelnoved without interfering with the work, and which may be used without; hampering the accessibility of the operator to the pieces being machined.

Another object is to create a very simple arrangement, which when used in conjunction with the table of the milling machine will confine the chips in such a manner that they may easily be removed by the operator, and which would prevent them from running into, and clogging up, or unduly eonstricting the channels provided'by the table for the flow of the cooling medium into the mturn well.

Other objects will be in part rendered apparent bythe twcompanying drawings, and

tiou therewith by means of the following" detailed description. v v order that this invention may be dis- I lion of chips, and would be ordinarily inadthe art to apply it in the various l'orms brst adapted for any given purpose, drawings of an illustrative ombmlinu-nt tin-root have been annexed as a part ol this diselos-aure, and insuch drawings like charm-tors of refert-nro denote rorrespomliug parts throughout. all ol the views ol" Wlllt'll l igure l. a fragmonlary perspective indicating the table of a milling marhine with a frame embodying our invention coiiperating therewith. Fig. J is a plan view showmg our oil guard and chip roulincr positioned in operative relation with a table. lfig. is; a sectional side elevation through hno 3----3 of Fig. 2, ill|u-1lrating certain do tails thercot'. Fig. l is a ll'illlSi'llHC section taken through line l of hi 2. Fig. 5 is a perspective of the perforate L-shafped part of this frame constituting a strainer for the oil and chips. i

Continuing now by way of a more detailed description. it may he noted that the means herein disclosed is of particular utilitv in conjunction with the means for increasing the cutter oflicirmzy in vented by A. J. Baker and disclosed and claimed in his ropendmg application, Serial 1\'o. SlldSS, filed Jan. 15, 191-1. Said means forms a circulating system embodying a hood maintaiir ing a flood oi a, cooling medium intimately in contact with a rotating cutter to exert a comparatively prolonged rel'rigorating effect on each lltftlltltl tooth during its return passage to its next cutting or operating sta tiou. In consequence of the use of said means. the normal rate ol. tooling ofa machine tool is very greatly increased; so much so that the conventional tables would be overrun by the greatly increased luodu equate to carry ofl' the very much greater (pmntitios of cooling medium that result from the said means. By utilizing this in strumentality, hmvcver, many conventional tables may serve in conjunction by said otlicienoy increasing means, and the design of new tables is also greatly simplified.

In general it may be stated that; this invention n'el'erably finds its oudnnlimcnt in the combinatitm of a machine tool table suitably grooved to enable work to be bolted theretmand having apin'opriate conduits tor lho escape of the cooling medium, together with a detachable frame having a proper relation and cooperating ell'cct with no the grooves of the table for the purposes mentioned. While this frame may be adapted for ordinary tables, preferably, however, such tables will be slightly modified and given a greater capacity.

Referring to the drawings, A indicates a table which will be mounted to reciprocate on the usual bed provided by the machine tool, and which provides a work supporting portion. 1 having a series of parallel T-slots which are adapted to receive the heads of the bolts employed for securing the work to the portion 1, as will be understood. This work supporting portion l is'preferably surrounded on all four sides by drainage grooves or channels adapted to carry off the cooling medium received by the table. Thus, two longitudinally extending channels 3-3, may be provided; one at the forward and the other at the rearward margin of the ivork supporting portion 1, or what may be called the plateau of the table. These channels, 3, are preferably espec l ly adapted for carrying off the cooling fl id, and accordingly they may differ in contour from the bolt retaining slots, 2, and be of greater capacity than the same, although they maybe designed, if desired, so as also toact as bolt retaining slots. The upper outer edged of these channels 3 will preferably terminate in about the same horizontal plane with the plateau 1. At the one end of the table is the end channel 5, having its bottom 6 at a relative high elevation, and leading into and continuous with the upper end 7 of the bottom 8 of the channel 3, which channel, bottom preferably slopes downwardly toward a point 9 into a transverse drainage conduit 10. The end channel 5 need not be of as great a cross-sectional area or capacity as the drainage c0n duit 10, because the latter will receive all of the ov rflowing fluid and the former only a portion thereof. In like manner, the bottom 11 of the drainage conduit 10 may be positioned below the oint 9, and may slope from the point 12 (Fig. 4) to the point 13 to direct the outflow of the cooling medium through the port 14;. Thereafter this fluid will by suitable means, not illustrated, return to an appropriate oil well in the base of the machine, and be then pumped back to the cutter and so on in an endless cycle. The end edges of the plateau 1 preferably terminated are indicated by 15 and 16.

'This invention proposes also a frame B, preferably in the form of an open rectangle, and preferably alsoconstructed "of sheet metal so' that it may be made very light and at the same time durable, even when handled roughly. This frame is composed of L shaped side and end members, which are here formed of rolled iron, out at an angle and welded together at the parting lines. Thus, the end member 17 provides an uprising flange 1,8, which may extend as high as desired, and a horizontal-web 19. This web is cut at each end at an angle of 45 degrees, as indicated by 20, and the resulting edges arewalded to similarly formed side members 21 and 22. The chip retainer 23 has its web 24 securedkto "the under side of the web 19 by means ofriv'ets 25 or otherwise, and it provides a depending shield portion 26 that may be inclined slightly as shown, and which sufliciently closes the ends of the T-shaped slots 2 to prevent the chips from flowing therefrom into the channel The transverse L-shaped member 27 locatedy,

at the otherend of this frame, 2'. (2., adjacent to the drainage conduit .10, is constructed.

similarly to the member 17, but the parts are so proportioned that instead of overlying, or

falling short of the transverse drainage channel (as does the member 17) it lies mainly beyond the same to make provision for the chip screening member directly overlying the drainage channel 10. This straining member is shown in perspective by Fig.6,

and it consists ofa rather extensive web portion 28 perforated with a multiplicity of holes of about 12 gage, and it also provides a flange like portion 29 for the same pur-.

pose and of the same construction as the flange 26 of the'other member. This strainer is formed of some wear resisting material,

such as sheet steel, and along its free margin 30 it is riveted to the free margin 31 of the i member 27, and adjacent its bent edge ,31 riveted to a crossbar 32, which in turn is riveted longitudinally to members 21 and 22 of the frame at such a point that the downturn flange 29 will bear against the edge 16 of the plateau, or tool supporting portion 1,

and preclude the passin of chips thereto into drainage well 10. from the foregoing description it will be apparent that this arrangement in point of construction is ex ceedingly simple and yet effective for the purposes indicated. It does not interfere with the work bolted to the table, and it prevents the chips from passing into the escape channels without unduly obstructing the flow of the cooling fluld, and it can instantly be applied to and r emoved from the table, and the workman can very easily, shovel out the accumulating chips without any hindrance. For the purpose of prevent. ing oil from creeping unduly along the bottom surface of longitudinal members of this frame, and thereby, perhaps, undesirably reaching other parts of the machine, it is proposed to secure small flanges 33 to the underside of the side members 21' and '22,

preferably in overlying relation with the longitudinal channel 3, as shown more fully by Fig. 4. These ribs or flanges, like the flanges 26 and 29, will deflect excess oil and capse it to drip into the underlying chan-' ne s.

possess Having thus revealed this invention, we claim as new and desire to secure by Letters Patent of the United Statcsz-- .1. A mechanism of the nature disclosed combining a table having a work-support ing area, and providing adjacent one end a dcpressed channel for receiving drainage from the table; an open frame providing elevated side-guards superposed on said table to expose said work-supporting area and extend ing-beyond said channel; and a screen-element extending across said channel to re strain chips from entering the same and to permit cooling-fluid to escape into said ehannel; the said guards of said frame preventing the chips from escaping said work-supporting area.

- 2. A mechanism of the nature disclosed combining a table having a \voi'lcsupporting area and providing adjacent one end a depressed channel for receiving drainage from the table; an open-frame superposed ()l'b said table to expose said work-sup mrling area and cxtendii'ig beyond said channel; said frame providing side guards adapted to .prevent the chips from escaping said work-supporting area; a screcu-elcmcnt extending across said channel to restrain chips from entering the same and to permit cooling-fluid to escape into said channel; said screen-element being secured to said frame and movable as a unit therewith.

A mechanism of the nature disclosed combinin a table having adjacent: one end a depressor channel for receiving drainage from the table and having a number of T shaped slots opening into said channel; an open frame superposed on said table and providing uprising side guards extending beyond said channel; a screen member extending across said channel to restrain chips from entering the same and to permit cooling-fluid to escape into said channel, and means for closing the ends of said T-shaped slots to prevent chips from entering said channel through said slots. j

4. A meqhanism oi the nature disclosed coml'iining atalole having adjacent one'end a depressed channel for receiving drainage from the table and havlng a number of T shaped slots open ng into said channel; an

open frame providing uprising side-guards and superposed on said table; and a flange like element secured to said frameand depcn i from the under-side thereof into a position obstructing the open ends of said slots to restrain chips from entering said channel through the same and to permit coolingluid toescape into said channel.

5. A mechanism of the nature disclosed combining a table having a slotted work- .sazpportiug area and providing :n'ljacenl' each end thereof a dcpressml channel for recei ing drainage. from said area; an open-- posed on said table to expose said oorhsupporting area; and a Ilango-liho element attending into each of said channels across the open ends of said slots to restrain (hips from entering the channels and to permit cooling-fluid to escape into said channel; -l'hc said guards ol said frame preventing tho chips from escaping said \\'o1'l -supporting area.

(3. mechanism of the nature disclosed combining a table providing a \vorl(-s|lpporting area having mljaccnt each end a depressed channel for receiving drainage from the table and having a number of T- shaped slots opening at each end into said channels; and an open frame superposed on said table and providing uprising sideguards to restrain. the chips to said \vorl-;- supporting area; and a flange-like element extending across the open ends of the T slots in each of said channels to restrain chips from entering the same and to permit cooling-fluid to escape into said channels.

7. A structure of the nature disclosed comprising; an open-frame providing side and end men'ibers presenting a continuous uprising rim adapted to conlinc chips, and providing two flangedilcc portions depending from its under-side adjacent each end thereof and adapted to enter the overllow channels at the ends of the table of a machine-tool to position said frame thereon and prevent chips from entering said channels.

8. A structure of the nature disclosed comprising an open-frame forming a continuons uprising rim adapted to confine chips, and a screen-clement secured to said (men-frame near one end thereof and adapted to take position over a drainage channel of a llltlCllillQ-llUOl table to exclude chips therefrom.

9. A structure of the nature disclosed comprising an open-frame providing side and end members presenting a continuous uprising, rim adapted to confine chips, and 'providing two opposite flange-like portions depending from its under-side adjacent opposito margins thereof and adapted to enter channels in the table of a machine-tool to position said frame thereon. I

10, A. structure of the nature disclosed comprising an open-fra1ne forming a continuous uprising rim adapted to confine chips, a screen-clement secured to said openl'ramc near one end thereof and adapted to take position over a drainage channel of a nmchinwtool table to exclude chips the-rcl'rom, and a liange depending from the undersidc of said frame and extending transversely thereof.

l1. 1\ structure of the nature disclosed comprising an opcn-'l'i.'a1ne providing side and end members presenting a continuous frame providing elevated side-guards supcrl uprising rim adapted to confine chips, and

providing :1 fim1ge-1jke portien depending from its underside adjacentone end thereof and. adapted to enter an overflow channel in the table of a nmchiue-tool and assist in pesiiioning said frame thereon.

12. A structure of the nature disclosed ebmprising an 0pei1-fr2une forming a e0ntinuorls urrising rim adapted to confine chips, a at; perforated screen-element secured to said open-frame in the horizontal plane thereof and meet one end thereof and adapted to take posltion over a drainage channel of a machine-tool table to exclude chips therejfrem, and e rib-like means depending from the underside of said frame 15 our names as attested by the two suescrib- 20 ing witnesses.

' ARTHUR J. BAKER.

ROBERT '11 HAZELTON. Wiinesses Lemma, See 1%) metrenz. 

